Home / 72,006.90-99,364.86-39,741.81

Finding the Fourth Proportional to 72,006.90, 99,364.86 and 39,741.81

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Solution

The fourth proportional to 72,006.90, 99,364.86 and 39,741.81 is: 54,841.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,006.90 : 99,364.86 = 39,741.81 : x
  2. Step 2: Convert to fraction form
    72,006.90/99,364.86 = 39,741.81/x
  3. Step 3: Cross multiply
    72,006.90x = 99,364.86 × 39,741.81
  4. Step 4: Simplify right side
    72,006.90x = 3,948,939,386.80
  5. Step 5: Solve for x
    x = 3,948,939,386.80/72,006.90
  6. Step 6: Final answer
    x = 54,841.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.